Term
| When the more unstable, short-lived chlorophyll molecules bread down, the longer-lived ______ pigment becomes visible and the leaves are _______. |
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Definition
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Term
| Some plants convert sugars to the __________ pigments, resulting in _________ colors. |
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Definition
| Anthocyanin pigments; red/blue. |
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Term
| To get maximum red-purple leaf color, what environmental conditions are ideal? |
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Definition
| Bright days, cool nights. |
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Term
| A very dry autumn results in: __________ |
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Definition
| A lack of color change in leaves. |
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Term
| A sudden early hard frost results in: ___________ |
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Definition
| Leaves turning brown overnight. |
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Term
| How does a compound leaf differ from a simple leaf? |
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Definition
| A compound leaf has leaflets, and the leaflets do not have buds. |
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Term
| What fatty or waxy substance present on the outer walls of leaf epidermal cells is often lost in the preparation of slides? |
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Definition
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Term
| When you view a cross section of a leaf with the upper epidermis at the top, where is the phloem located in a vein? |
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Definition
| The bottom of a vascular bundle (vein). |
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Term
| Which of the larger organelles are most abundant in palisade mesophyll cells? |
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Definition
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Term
| What specific tissue marks the outer boundary of the transfusion tissue in a pine leaf? |
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Definition
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Term
| Which tissue lies between the epidermis and the endodermis in a pine leaf? |
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Definition
| Mesophyll and hypodermis. |
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Term
| Where are the resin canals located in a pine leaf? What is their function? |
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Definition
| Near epidermal cells within the mesophyll; deter animals from feeding on it. |
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Term
| What are sunken stomata? With which types of plants are they associated? |
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Definition
| Stomata that is far in the surface of a leaf to allow gas exchange with minimal water loss; Plants that receive little moisture. |
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Term
| What is the function of a hypodermis? Where is it located? |
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Definition
| Support and rigidity; just beneath the epidermis. |
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Term
| Apart from size and shape, how do guard cells differ from the epidermal cells that surround them? |
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Definition
| Contain chloroplasts and can make sugars. |
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